Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
quelle.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 05:52:25 UTC · ↺ Refresh
MX Hostnames
- quelle-de.mail.protection.outlook.com
MX Priorities
- quelle-de.mail.protection.outlook.com: 1
A / AAAA Records
- 34.149.110.250 ↩ 250.110.149.34.bc.googleusercontent.com
Mail Server IPs
- 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
- 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
- 52.101.73.30 ↩ mail-am7pr05cu00306.inbound.protection.outlook.com
- 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
- 2a01:111:f403:ca04:: ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-cloud-b1.googledomains.com cloud-dns-hostmaster.google.com 1 21600 3600 259200 300
Primary NS (mname)
ns-cloud-b1.googledomains.com
Admin Email (rname)
cloud-dns-hostmaster@google.com
Serial
1
Refresh
21600s
Retry
3600s
Expire
259200s
Minimum TTL
300s
Nameservers (NS)
ns-cloud-b3.googledomains.com
ns-cloud-b2.googledomains.com
ns-cloud-b1.googledomains.com
ns-cloud-b4.googledomains.com
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:80.85.192.0/20 include:spf.srv2.de include:spf.hornetsecurity.com include:spf.protection.outlook.com a:_spf.otto.de ip4:195.50.179.11 ip4:62.216.176.90 a:spf.baur.de -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;pct=10;rua=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 10% of failing messages only
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- SPFv=spf1 mx ip4:80.85.192.0/20 include:spf.srv2.de include:spf.hornetsecurity.com include:spf.protection.outlook.com a:_spf.otto.de ip4:195.50.179.11 ip4:62.216.176.90 a:spf.baur.de -all
- 1ee821b113234e53aa12d82f797c82b9
- facebook-domain-verification=z5hilplfe2791bdkssvjwws9shnq7g
- google-site-verification=r4HPhDO3cmLVadwvBFjW-YcbFiRvABVs0jO6gryAWfM
- ahrefs-site-verification_d06a0f39b75dce137214a789494470376a57ac3680bd4dde5577f40db584dd78
- zone-ownership-verification-f4d60c5ab0a892c266bd6202ee4889f0546f52c83f6b7b6edc8fa6b8c7895faf
- MS=ms19887304
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for quelle.de
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits